A URL search apparatus is configured to perform a method for URL address search in a URL list. The URL search apparatus maintains a URL list, and the method for Uniform Resource Locator (URL) address search includes receiving a connection request containing URL address information from a user; identifying tables that are generated according to characters constituting URL address information in the URL list and lengths of character strings serving as URL address information in the URL list; and performing a URL search by checking whether the URL address information contained in the connection request is present in the URL list on the basis of the identified tables.